我们不是经常这样问吗?

Is that you?
哪位会这样问的?
Are that you?

所有跟帖: 

Good example. -lwk1- 给 lwk1 发送悄悄话 lwk1 的博客首页 (0 bytes) () 06/16/2015 postreply 02:46:40

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